package com.education.project.web.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import com.education.project.model.LoginUser;

@Component
public class SystemInterceptor implements HandlerInterceptor {

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
			throws Exception {
		HttpSession session = request.getSession();
		LoginUser loginUser = (LoginUser) session.getAttribute("loginUser");
		String contextPath = session.getServletContext().getContextPath();
		if(loginUser!=null) {
			return true;
		}
		if ("XMLHttpRequest".equalsIgnoreCase(request.getHeader("X-Requested-With"))) {
			response.setStatus(402);
		} else {
			response.sendRedirect(contextPath+"/timeout.html");
		}
		return false;
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {
		// TODO Auto-generated method stub

	}

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
			throws Exception {
		// TODO Auto-generated method stub

	}

}
